<template>
    <div class="login_container">
        <div class="login_box">
            <div class="avatar_box">
                <img src="../assets/logo.png" alt="">
            </div>
            <!-- 登录表单区 -->
            <el-form class="login_form" :model="loginForm" :rules="loginFormRules" ref="loginFormRef" >
                <!-- 用户名 -->
                <el-form-item prop="username"> 
                    <el-input  prefix-icon="iconfont icon-user" v-model="loginForm.username"></el-input>
                </el-form-item>
                <!-- 密码 -->
                 <el-form-item prop="password"> 
                    <el-input type="password" show-password prefix-icon="iconfont icon-3702mima" v-model="loginForm.password"></el-input>
                </el-form-item>
                <!-- 登录按钮 -->
                 <el-form-item class="btns"> 
                    <el-button type="primary" @click="login">登录</el-button>
                    <el-button type="info" @click="resetLoginForm">重置</el-button>
                </el-form-item>
            </el-form>
        </div>
    </div>
</template>

<script>
export default{
    data(){      
        return{
        // 这是登录表单的数据对象
        loginForm:{
            username:"admin",
            password:"123456"
        },
        // 表单验证规则
        loginFormRules:{
            // 验证用户名
            username:[
                { required: true, message: '请输入用户名', trigger: 'blur' },
                 { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
            ],
            // 验证密码
            password:[
                 { required: true, message: '请输入登录密码', trigger: 'blur' },
                 { min: 6, max: 15, message: '长度在 6到 15个字符', trigger: 'blur' }
            ]
        }
        }
       
    },
    methods:{
        // 点击重置按钮，重置表单
        resetLoginForm() {
            this.$refs.loginFormRef.resetFields()
        },
        login(){
            this.$refs.loginFormRef.validate(async (valid)=>{
                if(!valid) return;
                const {data:res}=await this.$http.post('login',this.loginForm);
                if(res.meta.status!==200) return  this.$message.error('登录失败');
                this.$message.success("登录成功！")
                window.sessionStorage.setItem('token',res.data.token)
                this.$router.push('/home')
            })
        }
    }
}
</script>

<style lang="less" scoped>
.login_container{
    background-color: #2b4b6b;
    height: 100%;
}
.login_box{
    width: 450px;
    height: 300px;
    background-color: #fff;
    border-radius: 3px;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%,-50%);
    .avatar_box{
        height: 130px;
        width: 130px;
        border: 1px solid #eee;
        border-radius: 50%;
        padding: 10px;
        box-shadow: 0 0 10px #ddd;
        position: absolute;
        left: 50%;
        transform:translate(-50%,-50%);
        background-color: #fff;
        img{
            width: 100%;
            height: 100%;
            border-radius: 50%;
            background-color: #eee;

        }
    }
}
.btns{
    display: flex;
    justify-content: flex-end;
}
.login_form{
    position: absolute;
    bottom: 0;
    width:100%;
    padding: 0 20px;
    box-sizing: border-box;
}
</style>
